The OTC Crankshaft Alignment Tool, No. 5883, is designed to ensure proper crankshaft alignment while checking camshaft timing and servicing. The pin will drop into crankshaft locating hole, placing the No. 1 cylinder at top-dead-center (TDC). The tool is for use on Detroit Diesel Series 60 engines. Replacement tips (No. 5883-1) are available.